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JMA-9172-SA Instruction Manual > 2.CONTROL PANEL KEYS and SOFTWARE BUTTONS > 2.3 FUNCTIONS OF SOFTWARE
BUTTONS
Radar trails display time switching
The radar trails display time is switched whenever the button is clicked.
If the time does not reach the radar trails time that was set, the remaining time is
displayed on the right-hand side.
If the button is clicked for 2 seconds, the RADAR Trails Setting menu is opened.
Numeric information: AIS target information
Detail / simple display switching
This function switches the display mode to detail / simple display when AIS target
information is displayed.
Unread message display
When there is an unread message from the AIS target that is displayed, the message is
displayed. If this button is clicked, the message is displayed.